Posts in tag

Earths


Image copyright Nippon Foundation-GEBCO Seabed 2030 Project Image caption The black is where we still need modern measurements at a reasonable resolution We’ve just become a little less ignorant about Planet Earth. The initiative that seeks to galvanise the creation of a full map of the ocean floor says one-fifth of this task has now …

Blobs of hot, dense material that curl around Earth’s core are much more widespread than previous research suggests. A new method of analysing earthquake data has found even more of the previously detected continent-sized zones at the boundary between the planet’s core and mantle.   We still don’t know what these blobs are – they could …

Image copyright NASA/J.Sonntag Image caption Other space data indicates Denman shed 270 billion tonnes of ice between 1979 and 2017 East Antarctic’s Denman Canyon is the deepest land gorge on Earth, reaching 3,500m below sea-level. It’s also filled top to bottom with ice, which US space agency (Nasa) scientists reveal in a new report has …

Media playback is unsupported on your device Media captionA trained analyst will be able to extract information from such movies Satellite operator Iceye is now making videos that can show the Earth’s surface through cloud and at night. The short, 20-second movies are an extension of the standard still radar images it already produces. In …

Image copyright INTERNATIONAL SPACE STATION Image caption An image of the Yarrabubba area taken from the International Space Station Scientists have identified the world’s oldest asteroid crater in Australia, adding it may explain how the planet was lifted from an ice age. The asteroid hit Yarrabubba in Western Australia about 2.2 billion years ago – …

Image copyright Getty Images Image caption Carbon is all around us – in the trees and in the rocks There are 1.85 billion, billion tonnes of carbon on Earth, with more than 99% of it resident beneath our feet. Scientists from the Deep Carbon Observatory (DCO) project have spent 10 years assessing the “reservoirs and …

Study co-author Rob Coe and Trevor Duarte orienting cores from a lava flow site recording the Matuyama-Brunhes magnetic polarity reversal in Haleakala National Park, Hawaii, in 2015. Credit: Brad Singer Earth’s magnetic field seems steady and true—reliable enough to navigate by. Yet, largely hidden from daily life, the field drifts, waxes and wanes. The magnetic …

Credit: CC0 Public Domain There might be life on the Moon after all: thousands of virtually indestructible creatures that can withstand extreme radiation, sizzling heat, the coldest temperatures of the universe, and decades without food. These terrifying-sounding beings aren’t aliens but instead microscopic Earthlings known as tardigrades, who likely made it out alive following a …